Governor for steam-engines



(Modem v V J. RSWEET;

GOVERNOR FOR STEAM ENGINES.

Patnted Jan. 10,1 82.

Toall whom it may concern:

UNITED. STATES,

' ATENT OFFICE.

JOHN*E.S\V EET, on sYn oUsn, new ironic; j

I GOVERNOR FOR STEAM-ENGINES.

SPECIFICATION forming" Beit known thatl, JOHN EosoN SWEET, of

the city of Syracuse, county of Onondagaand State of New York, have inventedhew and useiul Improvements in Fly-Wheel Governors for Steam-Engines, 8m, of which theffollowing is a specification. p

' Before proceeding to a description of my invention I will remark that in most of the gov ernors of the class known as fly-wheel go t a .nors a certain defect exists, and when thatdefect has been remedied'it hns been done at the expense of additional, pieces. The dcfectmentionedisthat of some unbalanced portion of the mechanism,.usually theeccentric, tending to-;fall toward the shaft when above it and i away from the shaftwhen below it, thus constantly disturbing the position of the eccentric and levers to neutralize it;

and unnecessarily wearingthe pivots and cansing the cnt-oti' to vary at the two ends of the cylinder. So wellknown and objectionable is thisfeaturethat inventors have added weights My invention is intended to obviate all these objections andtheinvention consists chiefly in the comb'inationof the eccentric with a single governing weight or ball mounted on one end of alever which is pivotedto the fly-wheel at apoint in a line at, or nearly at, a right an gleto another line passing throughthe pivot of the eccentric and the center of the shaft, and a thnsconnecting the other end of said lever by a link to a projection on the eccentric opposite to its pivote'd connection with the fly-wheel in such a. manner that the weight of the hall and its lever at all timescounterbalances the weight of the eccentric and its attachments, as will hereinafter appear. K j

Figure lis a side view of the device. Fig.-

2is a sectional view, Fig. 3 is a sectional view of the pivotal joint.

, 'At A is" represented the flywheel, iipon which the eccentric, as at B, is mounted and connected bya pivot, as at G.

The actuat-ln g or governlng weight is shown at D, mounted on a lever, as at E, which is pivoted to the flywheel at li' in a line which forms a right angle, or nearly so, with a line-passing through the pivot of the eccentric and the shaft of thefiy-wheel, and the other end of said Inver is connected hya link, gs at G, to a propart of Letters t atenii no. 252,276, dated January 10, 1882;

Application filed Apr-i122, 1880. (Modchl jection, as at H, on the eccentric, so that the vibrations of the weightorball are simultane- 'ous with -the vibrations of the eccentric, and

exactly opposite to each other; consequently-if they are properly weighted they will counterbalance each other in whatever position the flywheel may be placed.

'lo'produce the governing action, or to give the reqmred resistance at the eccentric, a spr1ng, asat K, 18 mounted upon the flywheel,

and its l'rce end is attached by a link, as at L,- to the projection on the eccentric, and thus forces the eccentric over to its extreme point of eccentricity. It is evident that this spring may be attached on the opposite side of theflywheel, and may be connected to the lever or fthe actuating-weight in any other convenient manner to serve as a counter agent; and itmay also beot' a different form, as a spiral or volute.

As the joints at M M in the links-tvh'iclt,

couple the end ot' the lever to the eccentric and the eccentric to the spring are sul ject to ex-T cessive pressure andv slightntoventent, the form of joint shown in Fig. 3 has been adopted.

The holes in'the ends'of the links-Grind L are tnadelarger than the pins which they emhrace, and within these holes are secured flat pieces of tempered steel, N, with their workingfaces at. right angles to the line of pressure.

.VWhen the, pressure is brought td'hear on these links the pins are held firmly against these-flat steel faces, and as movement takes place in the tric, asand for the purposes set forth.

2. The combination of the eccentric B, actu ating and counterbalancing weight or ball D,

centrally-pivoted lever E, and linkiG with the fly-wheel A, as and for the purposes'set forth;

3. The combination of the fly-wheel A, ec-

centric B, counterbalancing weight or ball 1'),

centrally-pivoted lever E, link Gr, and spring K, as and for the pnrpose set forth. 1

4. In a governor of the form descrihedland having pivot-a1 joints formeilaef a circular pin orbearing resting on a plain sm'iiice, con hjned hand and seal in the presence of two subset-ibwith the arms F and G of the governor {and ing witnesses.

the arms (3 and H of the eccentric, so refuted w x x 1 that a parallel motion is produced and turoli- JOHN bWLE'L 5 ing action is given to the pins on their'bear- Witnesses:

big-surfaces, as hereinbefore set forth. EUGENE N. ELIOT,

Intestimony whereotI have hereunto set my C. E. LIPE. 

